vermis

ver·mis

, pl.

ver·mes

(ver'mis, -mēz),

1. A worm; any structure or part resembling a worm in shape.

2. Vermis cerebelli, the narrow middle zone between the two hemispheres of the cerebellum; the portion projecting above the level of the hemispheres on the upper surface is called the superior vermis; the lower portion, sunken between the two hemispheres and forming the floor of the vallecula, is the inferior vermis.

vermis

vermis cerebel´li the median part of the cerebellum, between the two lateral hemispheres.

vermis

(vûr′mĭs)

n.pl.ver·mes(-mēz)

The region of the cerebellum lying between and connecting the two hemispheres.

vermis

[vur′mis]pl. vermes

Etymology: L

1 a worm.

2 a structure resembling a worm, such as the median lobe of the cerebellum. vermiform,adj.

ver·mis

, pl. vermes (vĕr'mis, -mēz) [TA]

1. A worm; any structure or part resembling a worm in shape.

2. [TA] The narrow middle zone between the two hemispheres of the cerebellum; the portion projecting above the level of the hemispheres on the upper surface is called the superior vermis; the lower portion, sunken between the two hemispheres and forming the floor of the vallecula, is the inferior vermis.

[L. worm]

vermis

[L.] a worm, or wormlike structure.

vermis cerebelli

the median part of the cerebellum, between the two hemispheres.

nodule of vermis

the part of the vermis of the cerebellum, on the ventral surface, where the inferior medullary velum attaches.

The CAI and CA4 regions of the hippocampus, middle laminae of the neocortex, reticular nucleus of the thalamus, amygdala, cerebellar vermis, caudate nucleus and the pars reticulata of the substantia nigra are particularly vulnerable.

Relatively recent research on structural brain changes in individuals with prenatal alcohol exposure has documented overall reductions in brain size and greater than expected reductions in the sizes of the basal ganglia, corpus callosum, and anterior cerebellar vermis.

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